#根据输入绘制不同形状
from turtle import*

x=eval(input("输入一个数: "))
begin_fill()
if x%2==0:
    fillcolor("red")
    circle(200)
else:
    fillcolor("yellow")
    for i in range(4):
        fd(200)
        left(90)
end_fill()
    
    
        
